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United States Patent | 5,524,584 |
Wantanabe | June 11, 1996 |
An outboard motor having a four-cycle internal combustion engine as a power plant. The engine is provided with a cylinder head having intake passages that extend downwardly from inlet openings in a surface of the cylinder head to outlet openings that communicate with the cylinder bores so as to reduce uneven running as might be encountered if fuel were to puddle and collect in the induction system.
Inventors: | Wantanabe; Takahide (Hamamatsu, JP) |
Assignee: | Sanshin Kogyo Kabushiki Kaisha (Hamamatsu, JP) |
Appl. No.: | 302204 |
Filed: | September 8, 1994 |
Sep 08, 1993[JP] | 5-246090 |
Current U.S. Class: | 123/184.38; 123/195HC; 123/196W |
Intern'l Class: | B63H 021/26 |
Field of Search: | 123/195 MC,196 W,193.5,193.3,184.21,184.23,184.38,184.39,184.36 440/84 |
Re32620 | Mar., 1988 | Iwai | 123/196. |
4356798 | Nov., 1982 | Sakaoka et al. | 123/184. |
4372258 | Feb., 1983 | Iwai | 123/196. |
4621595 | Nov., 1986 | Suzuki | 123/41. |
4683846 | Aug., 1987 | Takayasu | 123/195. |
4781635 | Nov., 1988 | Kinouchi | 123/195. |
4825835 | May., 1989 | Chino et al. | 123/195. |
5019118 | May., 1991 | Sakamoto | 123/196. |
5181491 | Jan., 1993 | Izumi et al. | 123/184. |